linux-toradex.git/mm/memory_hotplug.c, branch v3.10.26

mm/memory_hotplug.c: fix printk format warnings

2013-05-24T23:22:52+00:00

Fix printk format warnings in mm/memory_hotplug.c by using "%pa":

  mm/memory_hotplug.c: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t' [-Wformat]
  mm/memory_hotplug.c: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'resource_size_t' [-Wformat]

Signed-off-by: Randy Dunlap 
Reported-by: Geert Uytterhoeven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: fix memory_hotplug.c printk format warning

2013-04-29T22:54:39+00:00

PFN_PHYS() is a phys_addr_t, which can be u32 or u64.
Fix the build warning when phys_addr_t is u32.

  mm/memory_hotplug.c: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'unsigned int' [-Wformat]:  => 1685:3
  mm/memory_hotplug.c: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'unsigned int' [-Wformat]:  => 1685:3

Signed-off-by: Randy Dunlap 
Reported-by: Geert Uytterhoeven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm, hotplug: avoid compiling memory hotremove functions when disabled

2013-04-29T22:54:37+00:00

__remove_pages() is only necessary for CONFIG_MEMORY_HOTREMOVE.  PowerPC
pseries will return -EOPNOTSUPP if unsupported.

Adding an #ifdef causes several other functions it depends on to also
become unnecessary, which saves in .text when disabled (it's disabled in
most defconfigs besides powerpc, including x86).  remove_memory_block()
becomes static since it is not referenced outside of
drivers/base/memory.c.

Build tested on x86 and powerpc with CONFIG_MEMORY_HOTREMOVE both enabled
and disabled.

Signed-off-by: David Rientjes 
Acked-by: Toshi Kani 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Greg Kroah-Hartman 
Cc: Wen Congyang 
Cc: Tang Chen 
Cc: Yasuaki Ishimatsu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: change __remove_pages() to call release_mem_region_adjustable()

2013-04-29T22:54:37+00:00

Change __remove_pages() to call release_mem_region_adjustable().  This
allows a requested memory range to be released from the iomem_resource
table even if it does not match exactly to an resource entry but still
fits into.  The resource entries initialized at bootup usually cover the
whole contiguous memory ranges and may not necessarily match with the
size of memory hot-delete requests.

If release_mem_region_adjustable() failed, __remove_pages() emits a
warning message and continues to proceed as it was the case with
release_mem_region().  release_mem_region(), which is defined to
__release_region(), emits a warning message and returns no error since a
void function.

Signed-off-by: Toshi Kani 
Reviewed-by : Yasuaki Ishimatsu 
Acked-by: David Rientjes 
Cc: Ram Pai 
Cc: T Makphaibulchoke 
Cc: Wen Congyang 
Cc: Tang Chen 
Cc: Jiang Liu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: walk_memory_range(): fix typo in comment

2013-04-29T22:54:28+00:00

Fix a typo "end_pft" in the comment of walk_memory_range().

Signed-off-by: Toshi Kani 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/hotplug: only free wait_table if it's allocated by vmalloc

2013-03-22T23:41:20+00:00

zone->wait_table may be allocated from bootmem, it can not be freed.

Signed-off-by: Jianguo Wu 
Reviewed-by: Tang Chen 
Cc: Tang Chen 
Cc: Jiang Liu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: remove_memory(): fix end_pfn setting

2013-03-13T22:21:44+00:00

remove_memory() calls walk_memory_range() with [start_pfn, end_pfn), where
end_pfn is exclusive in this range.  Therefore, end_pfn needs to be set to
the next page of the end address.

Signed-off-by: Toshi Kani 
Cc: Wen Congyang 
Cc: Tang Chen 
Cc: Kamezawa Hiroyuki 
Cc: KOSAKI Motohiro 
Cc: Jiang Liu 
Cc: Jianguo Wu 
Cc: Lai Jiangshan 
Cc: Wu Jianguo 
Cc: Yasuaki Ishimatsu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/memory_hotplug: use pgdat_end_pfn() instead of open coding the same.

2013-02-24T01:50:21+00:00

Replace open coded pgdat_end_pfn() with helper function.

Signed-off-by: Cody P Schafer 
Cc: David Hansen 
Cc: Catalin Marinas 
Cc: Johannes Weiner 
Cc: Mel Gorman 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/memory_hotplug: use ensure_zone_is_initialized()

2013-02-24T01:50:21+00:00

Remove open coding of ensure_zone_is_initialzied().

Signed-off-by: Cody P Schafer 
Cc: David Hansen 
Cc: Catalin Marinas 
Cc: Johannes Weiner 
Cc: Mel Gorman 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: add helper ensure_zone_is_initialized()

2013-02-24T01:50:21+00:00

ensure_zone_is_initialized() checks if a zone is in a empty & not
initialized state (typically occuring after it is created in memory
hotplugging), and, if so, calls init_currently_empty_zone() to
initialize the zone.

Signed-off-by: Cody P Schafer 
Cc: David Hansen 
Cc: Catalin Marinas 
Cc: Johannes Weiner 
Cc: Mel Gorman 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds